Hey, I've been saving up some money to get my hands on a fast computer for 3D.
Now i'm hestitating between these 2. Which would you recommend?
Does PCI-E really make a big difference?

Now i have to choose, the left computer or the right computer:
LEFT:
Dual Processor - Dual Intel® Xeon Processors 2.8GHz 800 MHz FSB w/1MB Cache

Alienware® X2 Dual Xeon™ Motherboard

FEATURING PCI-E

NVIDIA® Quadro™ FX 3400 PCI Express 128MB DDR w/Digital and VGA Out


RIGHT:
Dual Intel® Xeon™ Processors 3.2GHz 533 MHz FSB w/ 2MB Cache

Supermicro® X5DAL-TG2 - Intel E7505 Chipset Motherboard

NVIDIA® Quadro® FX 4000 256MB 8x AGP w/Dual DVI


https://alienware.com/Product_Pages/w...ntent_all.aspx
visual virtuoso or creative genius